Probing dark energy-dark matter interaction with gravitational waves

Paper Title:

Prospects for probing the interaction between dark energy and dark matter using gravitational-wave dark sirens with neutron star tidal deformation

Published on:

24 October 2023

Primary Category:

Cosmology and Nongalactic Astrophysics

Paper Authors:

Tian-Nuo Li,

Shang-Jie Jin,

Hai-Li Li,

Jing-Fei Zhang,

Xin Zhang

Bullets

Key Details

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Gravitational waves from neutron star mergers can precisely measure cosmic expansion

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But gravitational waves alone cannot tightly constrain dark matter-dark energy interaction

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Combining gravitational waves with cosmic microwave background breaks degeneracies

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Improves interaction strength constraints by 70% over current data

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Results are not affected much by neutron star equation of state

Explore the topics in this paper

cosmic microwave background

dark energy

dark matter

gravitational waves

neutron stars

AI generated summary

Probing dark energy-dark matter interaction with gravitational waves

This paper investigates using gravitational waves from neutron star mergers to probe the interaction between dark energy and dark matter. Simulations show gravitational waves alone cannot tightly constrain interaction strength, but when combined with cosmic microwave background data, constraints improve significantly. Results are robust to different neutron star equations of state.